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Zhang Jun
Zhang Jun
ZhangJun23
Beijing Xicheng TT Club πŸ“ 丰台区 πŸ‡¨πŸ‡³ CN
1386
Rating iBayesian conservative rating = ΞΌ βˆ’ 2Οƒ. The system is 95% confident this player's skill is at least this value. More matches lower Οƒ and raise this number.
1477
ΞΌ (mean) iΞΌ (Mu) is the best estimate of this player's skill level. Wins raise it, losses lower it. Beating a stronger player earns more than beating a weaker one.
45.3
σ (uncertainty) iσ (Sigma) = how confident the system is in the rating. Lower is better. New players start at σ=200 — it falls with every match played.
40%
Win Rate iWins Γ· (wins + losses). Requires at least 1 match.
4
Wins
6
Losses
Skill Confidence Intervals iBased on ΞΌ and Οƒ, the system estimates this player's skill range at different confidence levels. The smaller Οƒ is, the narrower the band.
68%  (1Οƒ)1432 β€” 1522
95%  (2Οƒ)1386 β€” 1568
99.7% (3Οƒ)1341 β€” 1613
Trust Level iHow reliably this player submits match results. Formula: rejections per 10 submissions. Fewer rejections = higher trust. No data
No submissions yet

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Recent Matches

Date Player A Player B Δμ iChange in ΞΌ after this match. Positive = won. The size depends on the skill gap between both players and their Οƒ values.
5/26/2026 πŸ† LiJie136 ZhangJun23 -5.0
3/22/2026 πŸ† ZhangJun23 ChenMing25 +13.0
2/22/2026 ZhangJun23 πŸ† ZhaoGang27 +2.0
2/14/2026 WuHao30 πŸ† ZhangJun23 +16.0
2/6/2026 πŸ† ZhangJun23 LiuTao24 +43.0
1/18/2026 πŸ† LiLei22 ZhangJun23 -33.0
1/12/2026 πŸ† ZhouPeng29 ZhangJun23 -19.0
1/11/2026 ZhangJun23 πŸ† LiuTao24 -62.0
12/27/2025 ZhangJun23 πŸ† YangChao26 -49.0
12/25/2025 WangWei21 πŸ† ZhangJun23 +71.0